On the Aura blog Paul Jones has posted a look ahead for the framework, looking specifically at what's coming in version 2 for the Aura.Sql and ExtendedPdo functionality.

In the lessons learned post, I talked about how Aura was born of the idea that we could extract independent decoupled packages from Solar, and how in doing so, we discovered that some of those extracted packages themsleves could be further split into independent pieces.

He gives the example of Aura.Sql compared to the Solar_Sql (from the Solar framework) and how certain things that they thought needed to be coupled actually didn't. In version 2 of the Aura.Sql component, they're taking this same approach and abstracting out things that don't actually need to be in the base class. This breaks it up into three packages - Aura.Sql-v2, Aura.Sql_Query and Aura.Sql_Schema. He gets into more detail in the rest of the post as to what the new Aura.Sql (v2) will still handle.